Container



Sept. 13, 1938., 5.5mm 1 2,129,793

- CONTAINER Filed Dec. 26, 1954 Patented Sept. 13. 1938 PATENT OFFICE CONTAINER Swan Smith, White Bear, Minn., assignor to David C. Shepard', St. Paul, Minn. Application December 26, 1934, Serial No. 759,212

10 Claims.

My invention relates to containers and has for an object to provide a container and a method of forming the same, whereby a separate wall structure and a bottom may be securely and firmlyattached to one another.

An object of the invention resides in construct.- ing the wall structure and bottom from a flexible material such as paper and in forming on the bottom a flange integral with the bottom-and bent downwardly therefrom, said flange being adapted to lie adjacent the lowermost marginal portion of said wall structure.

Another object of the invention resides in providing a metal hoop, U-shaped in cross-section, with inner and outer-flanges and a connecting portion, said hoop embracing the lowermost marginal portion of said wall structure and saidbott'om flange and serving to hold these parts in,

proper relative position.

A still further object of the invention resides in providing the hoop with beads or barbs for engagement with grooves or indentations in the juxtaposed parts of the wall structure and bottom. An object of the invention resides in forming the juxtaposed parts of the wall structure and bottom with shoulders adapted'to engage one another and to hold these parts from longitudinal movement. I A feature of the invention resides in forming said beads and said shoulders by jointly scoring the parts through scoring "rolls. v An object of the invention resides in constructing the wall structure with an inwardly extending rib adapted to extend into the rounded corner formed through the bending of the botom flange from the bottom. said rib serving as a fillet for filling in said corner and for restraining longitudinal movementof the bottom with respect to the wall structure.

Another object of the invention resides in the particular construction of the hoop.

A feature of the invention resides in the method of forming the hoop in which the hoop is constructed from a strip of sheet metal bent to i provide spaced parallel flanges and thereafter run through crimping rolls to shorten one of the flanges to give a circular form to the hoop.

Another object of the invention resides in the method of assembling the parts of the invention in. which the hoop and adjoining parts of the container proper are simultaneously scored or otherwise mutilated to form interlocking parts for holding the bottom in posi ion with respect to the wall structure and for holding the hoop attached to the container. I

Other objects of the invention reside in the novel combination and arrangement of parts and in the details of construction hereinafter illustrated and/or described. I

In the drawing:

Fig. 1 is a perspective view of a container illustrating the application of my invention thereto.

Fig. 2 is a fragmentary sectionalview of the.

application thereof to the structure shown in .Fig. 3.

In the construction of containers from sheets of paper and particularly for use as butter tubs and for similar purposes, considerable difilculty has been encountered in attaching thebottom to the wall structure of the container. Where these parts have been glued or otherwise secured to gether the lower rim of the container has usually consisted of paper and considerable wear occurs at such locality'which causes the container to lose its usefulness. At the same time where the container is used as a butter tub, it is desirable to slide the container upon concrete floors which is practically impossible where the lower rim of the container is constructed of paper. The present invention provides an extremely simple and practical construction by means of which the disadvantages occurring with a paper rim are entirely overcome, and by means of which the bottom may be securely attached to the wall structure of the container.

A container embodying my invention proper is shown in Fig. 1 and comprises a body I0 open at the top which is constructed'with a separate wall structure II and a bottom l2. The bottom lZ is attached to the wall structure I I through a hoop I3. These various parts willnow be described in detail.

. The wall structure H is preferably constructed of sheets. of paper laid one upon the other and glued together, to form a composite structure substantially homogeneous. The wall structure II when the container is used as a'butter tub is preferably conical asshown in Fig. l and is open at the top and bottom, being continuous circumferentlally. The top of the tub may be closed by means of any suitable coirer. Such construction forming no particular feature of the invention has not beenshown in the drawing.

The bottom I2 is similarly constructed from sheets of paper disposed one upon the other and glued together. The assembled sheets are pressed in vsuitable dies to form the bottom proper It nd. a flange l5 extendingdownwardly therefrom. In the application of the bottom to the wall structure of the container the bottom I2 is insertedinto the interior of the container. The flange I5 of said bottom is of such dimensions as to cause the same to flt tightlywithin the lowermost marginal portion H of the wall structure II when the lower edge |8 of said flange is substantially flush with the lower edge I! of the wall structure U. Due to the fact that the flange I5 is constructed by bending the material of the bottom, a rounded corner I6 is formed between. the bottomproper l4 and the flange l5. This leaves an annular crevice 20 which extends about said bottom and which is disposed between the corner 5 and the wall structure II, as best shown in Fig. 3.

The hoop I3 is constructed from a straight narrow strip of sheet metal which is folded Ion-'- gitudinally along the center thereof to form a straight U-shaped structure having two spaced flanges 2| and 22 connected together through a rounded connecting portion 23 which when the hoop is applied to the container,serves as a rim on which the container rests. The straight u-shaped structure so formed is then run through crimping rolls which engage the flange 22 and crimp the same to form corrugations 24 in said flange. By means of this method of construction the length of the flange 22 is reduced as compared to the length of the flange 2| and the formerly straight structure converted into a curved hoop. Thereafter the ends of the flanges are secured together as by riveting, soldering or welding to form a hoop of desired dimensions. A portion of a. hoop so formed is illustrated in Fig. 4.

In applying the hoop l3 to the container the lowermost marginal portion I! of wall structure U and the flange I5 of bottom l2 are inserted into the space 25 formed between the two flanges 2| and 22 of said hoop. The lower edges I9 and 8 of these parts of the container substantially rest upon theconnecting portion 23 of the hoop. While the parts are so disposed, scoring rolls are applied to the outer flange 2| anda punching roll applied to the inner flange 22. These rolls are brought toward one another and as the bottom structure of the container passes between said rolls the outer flange 2| of hoop I3 is formed with two inwardly extending beads 26 and Hand the inner flange 22 is formed with a plurality of barbs 28 which extend toward the beads 25 and 21. At the same time the marginal portion I! of wall structure U is formed with grooves 3| and 32 which receive the beads 26 and 21 while the bottom flange I5 is formed with indentations 29' which receive the barbs 28. -By means of this construction shoulders 34, 35, 36 and 31 are formed in the bottom flange l5, and other shoulders 38, 39, 40 and 4| formed in the marginal portion I! of the wall structure 'H, which engage the first-named shoulders. These shoulders serve to restrain relative longitudinal movement of the flange l5 with respect to.

the wall structure U of the container. Due to the fact that the material from which the wall structure U is constructed is somewhat flexible, a rib 33 is formed on said wall structure opposite bead 26 which extends into the interior of the container. The bead 26 is so disposed that the rib 33 fills in the space 20 formed by the rounded corner l6 of the bottom I2 which serves as a. fillet and at the same time provides another shoulder 30 which restrains upward movement of the bottom |2 with respect to the 'wall structure II. It will be noted that the hoop l3.

most marginal portion II of the wall structure II. The rim 23 of the hoop l3 serves as a support for the container proper and also functions as a skid by means of which the container may be readily slid upon the surface on which it rests.

With a container constructed in accordance with my invention the bottom is firmly and securely held attached to the wall structure. Due to the rib formed on the wall structure the crevice ordinarily existing at the rounded corner between the wall structure, bottom and bottom flange is practically filled up so as to make the container more sanitary.. This construction in addition assists in preventing pulling out of the bottom. By the particular method used in constructing the hoop a relatively small amount of stretching of the metal is necessary so that an extremely strong and substa'ntial construction is provided. At the same time tinned iron or any other coated metal may be used without danger if injuring the coating thereof. By means of the interlocking shoulders formed on the parts of the bottom and wall structure of the container, these parts are further held from movement relative to one another. My improved hoop construction serves as a hand grip by means of which the container may be readily manipulated in the handling of the same. Our invention is extremely neat and attractive in appearance and is rigid and substantial in construction.

Changes in the specific form of my invention, as herein disclosed, may be made within the scope of what is claimed without departingfrom the spirit of my invention.

Having described my invention, what I claim as new and desire to protect by Letters Patent is:

I claim:

1. In a container having a separate wall structure, a bottom extending across said wall structure, a flange extending downwardly from said bottom and along the lowermost marginal portion of said wall structure, a hoop U-shaped in crosssection having inner and outer spaced circular flanges embracing said bottom flange and the lowermost marginal portion of said wall structure and having a rim connecting said flanges, the lowermost marginal portion of the wall structure being formed with spaced c'ircumferentially extending grooves disposed one above the bottom and one below the bottom, and beads on the outer hoop flange disposed within said grooves for assisting in holding the hoop attached to the wall structure.

2. In a container having a separate wall structure, a bottom extending across said wall structure, a flange extending downwardly from said bottom and along the lowermost marginal portion of said wall structure, a hoop having a flange encircling the lower marginal portion of said wall structure, and a rim underlying the lower edges of said wall structure and bottom flange, the lowermost marginal portion of said wall structure being formed with spaced circumferentially extending grooves, disposed one above the bottom and one below the bottom, and beads onthe hoop flange, disposed within said grooves for assisting in holding the hoop attached to the wall structure.

3. In a. container having a separate wall structure, a bottom extending across said wall structure, a flange extending downwardly from said section having inner and outer flanges embracing the-lower marginal portion of said wall structure and the bottom flange and a rim underlying the lower edges of said wall structure and bottom flange, the lowermost marginal portion of said wall structure being formed withspaced circumferentially extending grooves, disposed one above the bottom and one below the bottom, beads on the outer hoop flange disposed within said grooves mr assisting in holding the hoop attached to the wall structure, and means on the inner hoop flange entering said bottom flange and arranged in the form of a circle intermediate the beads on said outer hoop flange for assisting in holdingthe hoop attached to said bottom flange.

4. In a container having a separate wall structure, a bottom extending across said wall structure, a flange extending downwardly from said bottom and along the lowermost marginal portion of said wall structure, a hoop U-shaped in crosssection, having inner and outer spaced circular flanges embracing said bottom flange and the lowermost marginal portion of said wall structure,

andhaving a rim connecting said flanges, the

lowermost marginal portion of the wallstructure being formed with spaced circumferentially extending grooves disposed one above the bottom and one below the bottom, beads on the outer hoop flange disposed within said grooves for holding the hoop attached to the wall structure, and barbs on said other hoop flange extending toward said and having a rim connecting said flanges, the.

lower marginal portion of said wallstructure being formed with two spaced shoulders, one of saidshoulders engaging the bottom and the other being disposed immediately below the bottom, a shoulder formed on .said bottom flange, and engaging the other of said shoulders, said hoop holding said shoulders in engagement with one another. 1

6. In a container having a separate wall structure, a bottom extending across said wall structure, a flange extending downwardly from said bottom and along the lowermost marginal portion of said wall structure, a hoop U-shaped in cross-section having inner and-outer spaced circular flanges embracing said bottom flange and the lowermost marginal portion of said wall structure and having a rim connecting said flanges, spaced circumferential grooves formed upon the exterior or the lower marginal portion of the wall structure, beads on said outer hoop-flange fitting into said grooves, and a series of spaced barbs on said inner hoop flange entering into the bottom flange, said barbs being disposed at an elevation between the elevations 01' said grooves.

7. In a container having a separate wall' structure, a bottom extending across said wall structure, a flange extending downwardly from said bottom and along the lowermost marginal portion of said wall structure, a hoop U-sha'ped in cross-section having inner and outer spaced circular flanges embracing said bottom flange and the lowermost marginal portion of said wall structure and having a rim connecting said flanges, spaced circumferential grooves formed upon the exterior of the lower marginal portion of the wall structure, beads on said outer hoop flange fitting into said grooves, and a series of spaced barbs on said inner hoop flange entering into the bottom flange, said barbs being disposed at the upper edge of said inner hoop flange and between saidgrooves.

8. In a container having a separate wall struc ture, a bottom extending across said wall structure, a flange extending downwardly from said bottom and along the lowermost marginal portion of said wall structure, a hoop U-shaped in cross-section having inner and outer spaced circular flanges embracing said bottom flange and the lowermost marginal portion of said wall structure and having a rim connecting said flanges, spaced circumferential grdoves formed upon the exterior of the lower marginal portion of the wall structure, one of ,said grooves being below the bottom, beads on said outer hoop flange extending into said grooves, and a series of spaced barbs on said inner hoop flange entering into said bottom flange, said barbs being disposed at an elevation between the elevations of said grooves.

9. In a container having a separate wall structure, a bottom extending across said wall structure, a flange extending downwardly from said bottom and along the lowermost marginal portion of said wall structure, a hoop U-shaped in cross-section having inner and outer spaced circular flanges embracing'said bottom flange and the lowermost marginal portion of said wall structure and having a rim connecting said flanges,

spaced circumferential grooves formed upon the exterior 'of the lower marginal portion ofthe wall structure, one of said grooves being below the bottom, beads on said outer hoop flange extending into said grooves, and a series of spaced barbs on said inner hoop flange entering into said bottom flange, said barbs being disposed at the upper edge of. said inner hoop flange and below ,said upper groove.

bracing the lower marginal portion of said wall structure and the bottom flange, and a rim underlying the lower edges of said wall structure and bottom flange, the lowermost marginal portion of said wall structure being formed with circumferentially extending grooves in the exterior surface thereof and an indentation in the interior surface thereof between said first-named grooves, a projection on said bottom flange received within saidindentation, and means on the flanges or said hoop for engaging said wall structure at said first-named grooves, and said bottom flange opposite said projection thereon for holding the bottom flange attached to said wall structure and said hoop attached to the container.

swan sm'm.

a hoop U-shaped in spaced 1 

